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Is std::vector so much slower than plain arrays?
...d the array only once. Note: when you resize() the vector you are not only allocating the memory but also running through the vector and calling the constructor on each member.
Re-Arranging the code slightly so that the vector only initializes each object once:
std::vector<Pixel> pixels(di...
Remove files from Git commit
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@PabloFernandez, first of all, the accepted answer could have been what the OP was looking for (Also, it was posted months earlier). Secondly, accepted answers are always on top regardless of the number of up votes.
– MITjanitor
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BitBucket - download source as ZIP
...hat you want (as .zip, .gz or .bz2). There you'll find download links for all tags. The links will be in the format:
https://bitbucket.org/owner/repository/get/v0.1.2.tar.gz
By tweaking it a little bit, you can also have access to any revision by changing the tag to the commit hash:
https://bi...
How do I suspend painting for a control and its children?
... and reflector usage I came across the WM_SETREDRAW win32 message. This really stops controls drawing whilst you update them and can be applied, IIRC to the parent/containing panel.
This is a very very simple class demonstrating how to use this message:
class DrawingControl
{
[DllImport("user...
Why doesn't await on Task.WhenAll throw an AggregateException?
... been some changes to exception handling, but the newest docs for Task.WhenAll state "If any of the supplied tasks completes in a faulted state, the returned task will also complete in a Faulted state, where its exceptions will contain the aggregation of the set of unwrapped exceptions from each of ...
How to test if parameters exist in rails
...re asking about existence. You might need to differentiate:
Not there at all.
There but nil.
There but false.
There but an empty string.
as well. Hard to say without more details of your precise situation.
share
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How do you follow an HTTP Redirect in Node.js?
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It is. It's called http.request the API is pretty simple.
– Raynos
Oct 23 '12 at 20:24
3
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How do I check if a type provides a parameterless constructor?
...Type.EmptyTypes, null);
There's a caveat for value types, which aren't allowed to have a default constructor. You can check if you have a value type using the Type.IsValueType property, and create instances using Activator.CreateInstance(Type);
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Why should I learn Lisp? [closed]
I really feel that I should learn Lisp and there are plenty of good resources out there to help me do it.
29 Answers
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How to set time zone of a java.util.Date?
... @BrDaHa is correct.You'll need to TimeZone.setDefault() before calling getTime() so that the new date object will be in the time zone that you want. In JDK 1.8, Calendar.getTime() calls return new Date(getTimeInMillis());.
– jpllosa
May 9 '17 at 9:29...